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Power Electronics Europe News
PMICs are programmable and configurable

The MIC7400 and MIC7401 are available in a small 4.5 x 4.5mm FQFN package. They combine five independent 3A synchronous buck converters, an independent 200mA non-synchronous boost converter, and programmable features. They are targeted at SSDs and applications deploying processors and SoCs, including smart-home and IoT (Internet of Things) devices.

The devices are configurable via an I2C interface and an internal EEPROM. They offer dynamic output voltage scaling, normal and standby modes, and start-up power sequencing order and delays. Using only 200mA of quiescent current in normal mode, they have a low power standby mode to reduce the quiescent current by decreasing output voltage or turning off any individual output.

Configuration and monitoring is via a GUI tool. Both PMICs operate from a 2.4 to 5.5V input and can provide an output of 0.8 to 3.3V for the buck regulators with 1.5% output accuracy over line, load and temperature. The integrated boost regulator is capable of regulating output voltages from 7 to 14V. Other configurable features include soft-start rise/fall times, current limit, output active discharge in-addition to the threshold and delay for the integrated power-on-reset circuitry. Operating temperature range is -40 to 125°C. 




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